package com.tlgen.formlogin6.service;

import com.tlgen.formlogin6.model.User;
import com.tlgen.formlogin6.repository.UserDao;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.core.userdetails.UsernameNotFoundException;
import org.springframework.stereotype.Service;

@Service
public class UserService implements UserDetailsService {

    @Autowired
    private UserDao userDao;

    @Override
    public UserDetails loadUserByUsername(String s) throws UsernameNotFoundException {
        User user = userDao.findUserByUsername(s);
        if (user == null) {
            throw new UsernameNotFoundException("用户名不存在!");
        }
        return user;
    }

}
